Japanese Yen Jumps 1.8% to 10‑Week High

Japanese yen jumped about 1.8% in 30 minutes, hitting a 10‑week high of 155.04 per dollar before settling near 156.46.
The rapid rise sparked fresh speculation of Ministry of Finance or Bank of Japan intervention, though officials gave no comment.
Traders see 160 yen per dollar as a trigger for intervention, recalling late‑April action that lifted the yen about 3%.
Analysis of BOJ accounts suggests the central bank spent roughly $34.5 billion during the April 30 intervention.